I do not suffer from migranes, BUT, twice this has happened; I get a headache so bad I have to go to bed. It builds up then my vision goes funny, I can't focus without an area of my vision blurring. Then, this is the bit that really scares me - my speech goes funny, I try to speak and it comes out in word that don't make sense. I know the word I want to say but I can't say it, I can't get my mouth around the word. I'm terrified. This has happened twice now. I'm 28. What could it be? Please help if you can.